Stephen firmly believed that the courage of our questions and the depth of our answers would allow us to navigate planet Earth safely and wisely into the future. The story of his life in which he found, after his terrifying diagnosis with ALS, the will to love, to have children, to experience the world in all of its dimensions, and to grasp the universe, inspired millions and will remain a powerful metaphor for what humanity can achieve. His parting message, beamed into space during a memorial service on June 15, 2018, in Westminster Abbey, encapsulates it all: “When we see the earth from
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